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# Chapter 9 VOCAB

### Probability

TermDefinition
Complementary Events Two events in which either one or the other must happen, but cannot happen at the same time.
Compound Events A combination of two or more simple events.
Dependent Events If the outcome of one event affects the outcome of another event.
Experimental Probability Also known as relative frequency- based on what ACTUALLY happens in an experiment.
Fundamental Counting Principle You can use this to find the total number of possible outcomes by using multiplication.
Independent Events If the outcome of one event does not affect the outcome of another event.
Outcome A result of a probability experiment.
Permutation An arrangement, or listing, of objects in which order matters.
Probability the chance of something occurring.
Random Each event is equally likely to occur
Relative Frequency The ratio of the number of experimental successes to the number of experimental attempts
Sample Space The set of all possible outcomes.
Simple Event one outcome or a collection of outcomes
Simulation A test of a real-world scenario.
Theoretical Probabiliy Based on what should happen in an experiment.
Tree Diagram One way to create the list all the possible outcomes.
Unfair When the outcomes do not have the same chance of occurring.
Impossible A probability of 0
Certain A probability of 1
As likely as not A probability of 1/2
Created by: kgierman